Polymers / Polystyrene ( PS ) / Styrene Butadiene Rubber ( SBR 1502 )


Property Value
Volatile matter wt % 0.75 max ASTM D 1416
Ash wt % 1.5 max ASTM D 1416
Organic acid wt % 5.875 ASTM D 1416
Soap wt % 0.5 max ASTM D 1416
Bound styrene wt % 23 ASTM D 1416
Raw viscosity (ML 1+4 @ 100C) 46-58 ASTM D 1416
Compound viscosity (M 1+4 @ 100C) 46-58 ASTM D 1416
Tensile strength(35 min cured) kg/cm2 250 min ASTM D 412
Ultimate elongation(35 min cured) % 350 min ASTM D 412
300 % Modulus(35 min cured) kg/cm2 167-207 ASTM D 412

Description

 SBR–1502 is a cold, 23.5% styrene SBR polymer made with a mixed–acid.emulsifier, a non-staining stabilizer and a salt–acid coagulation. Provided that the compounds are formulated and processed correctly, the vulcanizates have very good abrasion , good heat and aging resistance, good mechanical properties , good electrical properties and good resistance to polar solvents and dilute acids.